HTMLSourceElement.cpp [plain text]
#include "config.h"
#include "HTMLSourceElement.h"
#include "Event.h"
#include "EventNames.h"
#include "HTMLImageElement.h"
#include "HTMLNames.h"
#include "HTMLPictureElement.h"
#include "Logging.h"
#include "MediaList.h"
#include "MediaQueryParser.h"
#include <wtf/IsoMallocInlines.h>
#if ENABLE(VIDEO)
#include "HTMLMediaElement.h"
#endif
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLSourceElement);
using namespace HTMLNames;
inline HTMLSourceElement::HTMLSourceElement(const QualifiedName& tagName, Document& document)
: HTMLElement(tagName, document)
, ActiveDOMObject(document)
, m_errorEventTimer(*this, &HTMLSourceElement::errorEventTimerFired)
{
LOG(Media, "HTMLSourceElement::HTMLSourceElement - %p", this);
ASSERT(hasTagName(sourceTag));
}
Ref<HTMLSourceElement> HTMLSourceElement::create(const QualifiedName& tagName, Document& document)
{
auto sourceElement = adoptRef(*new HTMLSourceElement(tagName, document));
sourceElement->suspendIfNeeded();
return sourceElement;
}
Ref<HTMLSourceElement> HTMLSourceElement::create(Document& document)
{
return create(sourceTag, document);
}
Node::InsertedIntoAncestorResult HTMLSourceElement::insertedIntoAncestor(InsertionType insertionType, ContainerNode& parentOfInsertedTree)
{
HTMLElement::insertedIntoAncestor(insertionType, parentOfInsertedTree);
RefPtr<Element> parent = parentElement();
if (parent == &parentOfInsertedTree) {
#if ENABLE(VIDEO)
if (is<HTMLMediaElement>(*parent))
downcast<HTMLMediaElement>(*parent).sourceWasAdded(*this);
else
#endif
if (is<HTMLPictureElement>(*parent)) {
m_shouldCallSourcesChanged = true;
for (const Node* node = previousSibling(); node; node = node->previousSibling()) {
if (is<HTMLImageElement>(*node))
m_shouldCallSourcesChanged = false;
}
if (m_shouldCallSourcesChanged)
downcast<HTMLPictureElement>(*parent).sourcesChanged();
}
}
return InsertedIntoAncestorResult::Done;
}
void HTMLSourceElement::removedFromAncestor(RemovalType removalType, ContainerNode& oldParentOfRemovedTree)
{
HTMLElement::removedFromAncestor(removalType, oldParentOfRemovedTree);
if (!parentNode() && is<Element>(oldParentOfRemovedTree)) {
#if ENABLE(VIDEO)
if (is<HTMLMediaElement>(oldParentOfRemovedTree))
downcast<HTMLMediaElement>(oldParentOfRemovedTree).sourceWasRemoved(*this);
else
#endif
if (m_shouldCallSourcesChanged) {
downcast<HTMLPictureElement>(oldParentOfRemovedTree).sourcesChanged();
m_shouldCallSourcesChanged = false;
}
}
}
void HTMLSourceElement::scheduleErrorEvent()
{
LOG(Media, "HTMLSourceElement::scheduleErrorEvent - %p", this);
if (m_errorEventTimer.isActive())
return;
m_errorEventTimer.startOneShot(0_s);
}
void HTMLSourceElement::cancelPendingErrorEvent()
{
LOG(Media, "HTMLSourceElement::cancelPendingErrorEvent - %p", this);
m_errorEventTimer.stop();
}
void HTMLSourceElement::errorEventTimerFired()
{
LOG(Media, "HTMLSourceElement::errorEventTimerFired - %p", this);
dispatchEvent(Event::create(eventNames().errorEvent, Event::CanBubble::No, Event::IsCancelable::Yes));
}
bool HTMLSourceElement::isURLAttribute(const Attribute& attribute) const
{
return attribute.name() == srcAttr || HTMLElement::isURLAttribute(attribute);
}
const char* HTMLSourceElement::activeDOMObjectName() const
{
return "HTMLSourceElement";
}
void HTMLSourceElement::suspend(ReasonForSuspension reason)
{
if (reason == ReasonForSuspension::BackForwardCache) {
m_shouldRescheduleErrorEventOnResume = m_errorEventTimer.isActive();
m_errorEventTimer.stop();
}
}
void HTMLSourceElement::resume()
{
if (m_shouldRescheduleErrorEventOnResume) {
m_errorEventTimer.startOneShot(0_s);
m_shouldRescheduleErrorEventOnResume = false;
}
}
void HTMLSourceElement::stop()
{
cancelPendingErrorEvent();
}
void HTMLSourceElement::parseAttribute(const QualifiedName& name, const AtomString& value)
{
HTMLElement::parseAttribute(name, value);
if (name == srcsetAttr || name == sizesAttr || name == mediaAttr || name == typeAttr) {
if (name == mediaAttr)
m_cachedParsedMediaAttribute = WTF::nullopt;
auto parent = makeRefPtr(parentNode());
if (m_shouldCallSourcesChanged)
downcast<HTMLPictureElement>(*parent).sourcesChanged();
}
}
const MediaQuerySet* HTMLSourceElement::parsedMediaAttribute(Document& document) const
{
if (!m_cachedParsedMediaAttribute) {
RefPtr<const MediaQuerySet> parsedAttribute;
auto& value = attributeWithoutSynchronization(mediaAttr);
if (!value.isNull())
parsedAttribute = MediaQuerySet::create(value, MediaQueryParserContext(document));
m_cachedParsedMediaAttribute = WTFMove(parsedAttribute);
}
return m_cachedParsedMediaAttribute.value().get();
}
}